Wheel



March 9,1926. 1,575,739

L. K. DALRYMPLE WHEEL Original Filed Sept. 20. 1920 2 Sheets-Sheet lMarch 9 1926.i 1,575,75 9

L. K. ALRYMPLE WHEEL Original Filed SSN'- 20, 1920 2 Sheets-Sheet 2 iPatented Mar.r9, 1926. v

.UNITI-:D1 STATES PATENT 'ori-IcaY LEWIS K. DALRYMPLE, OF CHICAGO,ILLINOIS, ASSIGNOR OF FOUR ONE-HUNDREDTHS T ALBERT H. ADAMS, 0F OAKPARK, ILLINOIS, AND FOUR ONE-IIUNDREDTIIS T0 JOHN L. JACKSON, 0F RIVERFORREST, ILLINOIS.

WHEEL.

Application led- September 20, 1920, Serial No. 411,553. Renewed August1.5, 1925.

T0 all 'whom 'it may concern.' y

Be it known that I, LEWIS K. DALRYMPLE,

a Citizen of the United States, and a resident of Chicago, in the countyof Cook and l State of Illinois, have invented certainnew and useful'Improvements in Wheels, of `which the following is a specificationreference being had to the accompanying draw- `ings.

My invention relates to metal wheels of the type provided with ademountable tirecarrying rim, and more particularly to such wheels inwhich the hub is connected with the rim by a disc or disc-like member asdistinguished from a separate spoke and felly construction. It has forits object to provide improved means for securing the demountable ortire-carrying rim in place, Aconstructed and arranged so that such rimmay be very easily and quickly mounted or demounted, while at the sametime it will be securely held inv place when in position on the wheel;also to provide a metal wheel of the type described which will be ofsubstantial construction although comparatively light in weight, andwhich will be comparatively inexpensive to manufacture. I accomplish myobject as illustrated in1 the accompanyingdrawings and as hereinafterdescribed. What I regard as new is set forth in the claims.

In the drawings,-

Fig. 1 is a side view showing the inner face of my improved wheel, someparts besection; s

Fig. 2 is an enlarged detail, being substantially a vertical sectiontaken on line 2 2 ofFig.3; s

Fig. 3 is a transverse vertical section taken on line 3-3 of Fig. 1; v

Fig. l is an enlarged detail being a partial vertical section of therimportion of the wheel showing one of the studs by which the tire carryingrim is held in position;`

Fig. 5 is an enlarged detail, being a partial horizontal section takenon line 5-5 of Fig. 3; and

Fig. 6 is a view `similar to Fig. 5, but showing the condition of the`parts when unlocked for removing the tire carrying rim.

Referring to the drawings,

10 indicates the hub which maybe of any approved type but preferablycomprises ing broken away and some parts being in fixed flange 11 at'oneend portion thereof and a plate 12 removablymounted at the opposite endthereof. The intermediate portion of the wheelcomprises a thin metalinner margin is provided with an annular shoulder 16 which' rests onftheyouter edge yof the plate. 12.

The discs 13 and 15 are firmly secured' tothe hub by means `ofringplates 17, 18l which overlap the inner marginal portions of ysaid discsand clamp them respectively against the flange 11 andV plate `12,through the instrumentality of'bolts .19

and spacing sleeves 2O mountedon said bolts between said ring plates, asshown in Fig. 3. Preferably the disc 13 is provided with a reinforcingring 21 welded to it opposite the point where the discs 13 and 15 aresecured together, said ring and the discs-being firmly united by rivets22, as shown. While the construction thus far described has beenexplained rather fully such constructionis to be understood merely asbeing preferential since the invention hereinafter claimed, which has todo only with the construction by which the usual tire-carrying rim issupported and secured so that it can easily be mounted or demounted, maywell be embodied in metal wheels in which the disc is secured tothe hubin various other ways. Y Y

Coming now to a description of the salient characteristics of -mypresent invention, the disc 13 is provided at its outer margin with alaterally-extending flexible rim flange 23 so constructed that its freemargin iscapable of being deflected outwardly, or in other words, ofswinging in and out relatively to the axis of the wheel about the outermarginal portion of the disc 13. This rim flange is preferablyformed bybending the outer edge of said disc laterally at approximately a rightangle with the body of the disc, and

slitting said rim flange transversely at 'several'points 24 so that itis made flexible'and capable of expansion by the application of force toits inner face. This rim flange is adapted to support and firmly grip atirecarrying rim 25 of any suitable type provided with a shoulder 26 orequivalent means at one side thereof adapted to abut against the outerportion of the disc 13 at'the base of the rim flange 23. The rim 25 isadapted t0 carry a pneum-atic tire 27 of any suitable type having avalve stem 23 extending` inward through a suitable opening through therim, as is common practice. Pref erably the tire carrying rim 25 isprovided with a boss 29 on its inner concaver surf-ace opposite theopening through which the valve stem extends, which boss is adapted toproject through a suitable opening in the rim flange, as shown in Fig.2. As is also clearly shown in that figure, the rim flange 23 isprovided with a collar 30 adapted to fit about the boss 29. The normaldiameter of the rim flange 23 is slightly less than the internaldiameter of the tire-carrying rim 25, so that said rim fits loosely onthe rim flange before its expansion and can then be applied or removedin the usual way. lVhen, however, the rim flange is expanded it gripsthe tire-carrying rim firmly and prevents its removal. The means forexpanding said rim flange comprises an expansible ring plate composed ofa pair of substantially semi-circular bars 31 and 32 which are securedto the rim flange 23 `adjacent to and at opposite sides of the collar30, in the construction shown such bars having their ends in contactwith said collar. These bars underlie and fit against the inner face ofthe rim flange 23 and at their opposite or free ends, are provided withwedge-shaped blocks 33 and 34, respectively, which are securedpreferably by welding, upon the free end portions of said bars. Theblocks 33 and 34 are spaced a short distance apart and a right and lefthand screw 35 is interposed between them, as shown in Fig. 6, said screwbeing supported by a suitable bearing in the disc 13 and a secondbearing in an ear 36 carried by the rim flange 23, as is best shown inFig. 3.- The screw 35 carries oppositelydisposed wedges 37 adapted tolcooperate with the wedge-blocks 33, 34e to force the free ends of thebars 31, 32 apart and thereby exert outward pressure upon and expand therim flange 23. As shown in Figs. 3 and 6, one end of the'screw 35projects through the disc 13 and is squared so that it can convenientlybe rot-ated from that side of the wheel.'

From the foregoing description it will be seen that the expansion of thebars 31, 32 operates to deflect the rim flange 23 outwardly by rockingit about the outer marginal portion of the disc 13, so as to cause it`to firmly grip the inner surface of the tire-carrying rim. lbut whenthe pressure of said bars is relaxed, the resiliency of said rim flangeimmediately restores it to its normal position,

thereby releasing the tire-carrying rim. As only a few turns of thescrew 35 are necessary to expand or contract the bars 31,32, obviouslythe tire-carrying rim may be very easily and quickly secured orreleased.

vFor the purpose of preventing lateral displacement of the bars 31, 32with reference to the rim flange 23 when they are not expanded, and alsoas an additional means for preventing such displacement of thetirecarrying rim when it is clamped on the rim flange, I provide twostuds 33 and carried by the bars 31 and respectively, and extending fromthe outer faces of'such bars. As is best shown in Fig. 4l, said studsextend through suitable openings in the rim flange 23, and when thetire-carrying rim is secured on the wheel, into registering openings insaid tire-carrying rim. These openings are elongated sufficiently topermit of the necessary circumferential movement of the bars 31, 32, asshown in Fig. fl, but their width is such that objectienable lateralmovement is prevented. lVhen the bars 3l. and 32 are released fromstress by the withdrawal of the wedge members 37, the studs 3S and 39yare released from engagement with the rim 25, thereby permitting saidrim to be demounted. ln the construction shown, two of the studs onlyare employed, each of such studs being spaced one-hun dred and twentydegrees from the boss 2f) which engages the collar 30. '-ly thisconstruction, the rim 25 has a threepoint .cen-

nectio-n to the rim flange, in addition to its being held in position bythe gripping action of said rim flange.

I have found in practice that by the use of my construction l am enabledto mount or demount the tire-carrying rim in a very few seconds, as thewhole operation requires a few turns only ofthe screw 35. SuitA ablemeans may be provided if desired for locking the screw 35 againstrotation so as to prevent accidental loosening of the tirecarrying rim,although l do not consider that necessary.

So far as l am aware, l am the first in the art'to provide a metal wheelwith a flexible rim fiange extending laterally from the outer marginalportion of a disc or equivalent device by which it is connected with thewheel hub, and capable of being deflected outwardly to grip atire-carrying rim; or such a device in which the defied tion of the rimflange is accomplished by anv expanding member placed within said rimflange so as to be capable of applying outward pressure against itsinner face. The generic claims hereinafter made are, therefore, not tobe restricted to the specific construction'shown and described, but areto be construed broadly enough to include such variations ormodifications as would occur to those skilled in the art.

lVhat I claim as my invention and desire to secure by Letters Patent,is-

l. A Wheel having a hub, an intermediate portion, a laterally-extendingflexible rim flange carried by said intermediate portion and adapted tofit within an outer rim and to be deflected angular-ly relatively tosaid intermediate portion into gripping engagement with said outer rim,and means for so deflecting said rim flange.

2. A wheel comprising a hub, an intermediate portion, alaterally-extending rim flange connected at its inner margin with saidintermediate portion and adapted to fit within an outer rim and to bedeflected angularly relatively to said intermediate portion intogripping engagement with said outer rim, and means for so deflectingsaid rim flange.

3. A metal Wheel comprising a hub, a disc connected therewith and havinga laterallyextending flexible rim flange at its outer margin adapted tolit within a tire-carrying rim and to be deflected outwardly intogripping engagement therewith, and-means for so deflecting said rimflange.

4. A metal wheel comprising a hub, a disc connected therewith and havinga laterallyextending rim flange the free margin whereof is adapted toswing -outward about the outer marginal portion of said disc .and isnormally adapted to fit within a tire-carrying rim, and means forswinging said rim flange outward into gripping engagement with the innersurface of said tire-carrying rim connected therewith and having alaterallyextending flexible rim flange integral with the outer marginalportion thereof' adapted to fit within a tire-carrying rim and to bedeflected outwardly into gripping engagement therewith, and mean-s forso deflecting said rim flange. Y

6. A metal wheel comprising a hub, a disc connected therewith. andhaving its outer marginal portion bent over at an approximately rightangle to form a laterally-extending flexible rim flange adapted to fitwithin a tire-carrying rim and to be deflected outwardly into grippingengagement therewith, and means for so deflecting said rim flange.

7. A metal wheel comprising a hub, a disc 5. A metal wheel comprising ahub, a disc connected therewith and having a laterallyextending flexiblerim flange at its outer margin adapted to fit within a tire-carrying rimand to be deflected outwardly into gripping engagement therewith, anexpansible member lying within said rim flange, and means for expandingsaid member to deflect said rim flange outwardly.

8. A metal wheel comprising a hub, a disc connected therewith and havinga laterallyextending flexible rim flange integral with the outermarginal portion thereof adapted to fit within a tire-carrying rim andto be deflected outwardly into gripping engagement therewith, anexpansible member lying within said rim flange, and means forexpandingsaid member to deflectsaid rim flange outwardly.

9. A metal wheel comprising a hub, a disc connected therewith and havingits outer marginal portion bent over at an approximately right angle toform a laterally-extending flexible rim flange adapted to fit within atire-carrying rim and to be deflected outwardly into gripping engagementtherewith, an expansible member lying within said rim flange, and meansfor expanding said member to deflect said rim flange outwardly.

1(). A metal wheel comprising a hub, a disc connected therewith andhaving a laterally-extending flexible rim flange at its outer marginadapted to fit within a tire-carrying rim and to be deflected outwardlyinto gripping engagement therewith, an expansible member lying withinsaid rim flange and intermediately connected therewith, and having freeend portions capable of movement relatively to said rim flange, and

means for expanding said member to deflect said rim flange outwardly.

11. A metal wheel comprising a hub, a disc connected therewith andhaving a laterally-extending flexible rim flange at its outer marginadapted to fit within a tire-carrying rim and to be deflected outwardlyinto gripping engagement therewith, an expansible member lying withinsaid rim flange and intermediately connected therewith, and having freeend portions capable of movement relatively t-o said rim flange, meansfor expanding said member to deflect said rim flange outwardly, andstuds carried by said member and engaging said rim flange and saidtire-carrying rim.

LEWIS K. DALRYMPLE.

